Charles rettie



G. BETTIE.

LATCH.

Patented Sept. 16, 1890.

Inventor.

[No Model.)

Witnesses UNITED STATES PATENT OFFICE;

CHARLES BETTIE, OF LIVERPOOL, ENGLAND.

LATCH.

SPECIFICATION forming part of Letters Patent No. 436,435, dated September 16, 1890.

Application filed March 26, 1890.

To all whom it may concern.-

Be it known that I, CHARLES BETTIE, of Liverpool, in the county of Lancaster, Great Britain, have invented certain new and useful Improvements in a Combined Door Catch and Look; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in a combined lock and latch, and is specially designed for use on cupboard and water-closet doors and where there is much jar and vibration, as on board ships.

In its main features this present invention consists of the latch described in the patent granted to me bearing date the 11th day of February, 1890, and No. 420,963, and a looking device, substantially as hereinafter set forth.

In the drawings herewith accompanying and making a part of this invention,Figure 1 is a view of a part of a door having my improved lock and latch attached thereto. Fig. 2 is a cross-section of the same. Fig. 3 is a plan of the inside of a door having my latch and lock attached and showing the spring and its recess in dotted lines. Fig. 4. is a section of Fig. 3, taken on line 1 1.

In all said figures same letters refer to like parts.

In the edge of a door is made a recess, and in said recess is pivoted a latch I), having a fingerc, with a beveled edge dand handle or knob e, which extends outwardly from the outside of the door. At the rear of said latch is a spring, which constantly tends to force the finger of the latch outwardly, so as to en= gage the casing when the dooris closed. Di rectly behind the said latch in the door is made a recess or well f, in which is pivoted a lock-bar g, consisting of the body part It and the projection 2', so arranged in said recess that the lock-bar 9 may be revolved or turned to the right or left, so as to allow the latch to be forced back when said projection is turned against either ed gej of the extension of the re- Serial No. 345,357. (No model.)

cess, as shown in Fig. 1. Over said lock is placeda cover 7a, which holds it in place, and a key Zpasses through the lock-bar. Said key has a handle an and extends through the door and terminates in a stem at, by which. said lock-bar may be operated to lock and unlock the door from the outside as well as the in side. Underneath the loclvbar is made there in a series of indentations 0, in which the bent part p of a spring q plays. By this spring the look-bar is held firmly in any given position.

The principle involved in this invention is the same whether the lock-bar is inserted in a recess in the face of the door or is contained within a'hollow case which is attached to the face or the door. 1

The operation of my improved lock is as follows: When the latch is unlocked, it oper ates in the manner set forth in said patent hereinbefore referred to. To lock the door from the inside, take hold of the knob m of the key and turn the lock-bar till it reaches the position shown in Fig. 1. To unlock and open the door from the inside, turn the lockbar till the projection '2; strikes against the edge j of the recess f. Then with the thumb or finger press the finger c of the latch back, the cover It, having a slot r therein, and open the door. To unlock and open the door from the outside, insert key in the key-hole s and turn as before. Then press knob e outward and open.

Having thus described my invention and its use, what I claim, and desire to secure by Letters Patent of the United States, is-- 1. The combination, with a latch pivoted in the edge of a door and a spring arranged to force said latch outwardly to engage with a clip in the door-jamb, of a plate located behind said latch and having a recess therein to receive said latch when it is drawn back, and a lock-bolt beneath said plate having aspur thereon, and means, substantially as set forth, for revolving said lock-bolt into position which will lock and unlock said latch, as desired, as and for the purposes set forth.

2. The combination, with a latch pivoted in the edge of a door and a spring constantly tending to force said latch outwardly, alocking-bar set in a recess in the face of the door and having a projection thereon, as set forth,

a key whereby said locking-bar may be In testimony that I claim the foregoing as turned, and a series of indentations in the myeown I aifix my signature in presence of under face of said locking-bar, of a spring two Witnesses.

having a bend therein adapted to enter said CHARLES BETTIE. 5 indentations and hold said loeking-barin any Witnesses;

given position, substantially as and for the ELGIN O. VERRILL, purposes set forth. FRANKIE. DoW. 

